{"product_id":"ds18-4-channel-70w-rms-class-d-full-range-amplifier-with-bluetooth-x4bt","title":"DS18 4-Channel 70W RMS Class D Full-Range Amplifier with Bluetooth X4BT","description":"\u003cul\u003e\n\u003cli\u003eUltra compact 4 channel Class D amplifier with built in Bluetooth 5.1 for wireless music streaming without a head unit\u003c\/li\u003e\n\u003cli\u003eDelivers 70W RMS x4 at 4 ohms, 140W RMS x4 at 2 ohms, or 220W RMS x2 bridged at 4 ohms\u003c\/li\u003e\n\u003cli\u003eIdeal for motorcycles, powersports, marine, and compact vehicle installs where space is limited\u003c\/li\u003e\n\u003cli\u003eSelectable HPF, LPF, or full range crossover with automatic switching between Bluetooth and RCA inputs\u003c\/li\u003e\n\u003cli\u003eWeather resistant brushed aluminum chassis with full protection circuitry for reliable daily performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eDS18 X4BT 4-Channel Class D Full-Range Amplifier with Bluetooth 70W RMS\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003e(1) DS18 X Series X4BT 4-Channel Ultra Compact Full-Range Amplifier with Bluetooth\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003eThe DS18 X4BT from the X Series is an ultra compact 4 channel full range amplifier built for modern audio systems that need clean multi channel power and wireless streaming in a small footprint. With built in Bluetooth 5.1, the X4BT lets you stream music directly from your phone without a head unit, making it perfect for motorcycles, powersports, marine, and compact vehicle installs.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eDespite its small size, the X4BT delivers efficient Class D output with low heat and dependable performance. It produces 70 watts RMS per channel at 4 ohms, 140 watts RMS per channel at 2 ohms, or can be bridged to deliver 220 watts RMS per channel at 4 ohms. This makes it ideal for running a full front and rear speaker setup, components, or compact subwoofer configurations.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eSelectable crossover modes allow flexible system tuning, while automatic input switching between Bluetooth and RCA keeps everyday use simple. Built with a brushed black aluminum chassis, four layer PCB design, and full protection circuitry, the X4BT is engineered to handle demanding environments where space and reliability matter most.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eIf you want a compact all in one amplifier that delivers wireless control and clean multi channel power, the DS18 X4BT is a solid upgrade.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eAmplifier Type: 4-Channel Stereo Full Range\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eAmplifier Class: Digital Class D\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power @ 4 Ohm: 4 x 70 Watts\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power @ 2 Ohm: 4 x 140 Watts\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power @ 4 Ohm Bridged: 2 x 220 Watts\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003ePeak Power: 1320 Watts\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMinimum Impedance: 2 Ohm Stereo \/ 4 Ohm Bridged\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFrequency Response: 20Hz to 20kHz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSignal to Noise Ratio: 90dB\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eEfficiency @ 4 Ohm: 80 Percent\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eDamping Factor: 200\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eTotal Harmonic Distortion: 0.20 Percent\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eLow Level Input Range: 0.2 to 5V\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSelectable Crossover: LPF \/ HPF \/ Flat\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCrossover Frequency: Fixed 80Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBluetooth Version: 5.1\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBluetooth Profile: A2DP 1.3.1\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBluetooth Range: Up to 60 ft\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eAudio Codec: SBC \/ AAC\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003ePower Input Terminal: 8 Gauge\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFuse Rating: 25A\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eLED Indicator: Power \/ Protect\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eProtection: Thermal, Overload, Short Circuit, DC Output, Voltage\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFinish: Brushed Black Aluminum\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eWeather Resistant: Yes\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eAutomatic Bluetooth or RCA Input Switching: Yes\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e2 or 4 Channel Input Selector: Yes\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eOverall Length: 5.54 Inches\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eOverall Width: 3.24 Inches\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eOverall Height: 1.37 Inches\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eHeatsink Length: 4.75 Inches\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e","brand":"DS18","offers":[{"title":"Default Title","offer_id":47970769043704,"sku":"DS-X4BT","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/9384\/8365\/files\/DS18_X4BT_4_Channel_Bluetooth_Class_D_Amplifier_70W_RMS_Main_Image.jpg?v=1770754709","url":"https:\/\/bigjeffaudio.com\/products\/ds18-4-channel-70w-rms-class-d-full-range-amplifier-with-bluetooth-x4bt","provider":"Big Jeff Online Inc","version":"1.0","type":"link"}